Best Antivirus for Mac in 2026: Tested on macOS Sequoia
The "Macs don't get viruses" myth is dead. Mac malware grew 60% in 2025, and macOS's built-in XProtect doesn't cover phishing, ransomware, or zero-day threats. We tested 12 antivirus programs on macOS Sequoia (M3 and Intel) to find the ones worth your money.
Our testing: we measured malware detection rates against 1,200+ Mac-specific samples, measured CPU/RAM overhead during scans and idle, tested web protection against 500 phishing URLs, and evaluated the quality of Mac-native apps.
Quick Comparison: Best Mac Antivirus 2026
| Antivirus | Detection Rate | Performance Impact | Apple Silicon Native | Starting Price | Best For |
|---|---|---|---|---|---|
| Bitdefender | 99.8% | Low (3% CPU) | Yes | $29.99/yr | Overall best |
| Norton 360 | 99.6% | Medium (7% CPU) | Yes | $39.99/yr | All-in-one protection |
| Malwarebytes | 98.9% | Very Low (2% CPU) | Yes | $44.99/yr | Lightweight protection |
| Intego | 98.4% | Low (4% CPU) | Yes | $24.99/yr | Mac-only households |
| ESET Cyber Security | 97.8% | Very Low (2% CPU) | Yes | $39.99/yr | Power users, low overhead |
1. Bitdefender Antivirus for Mac — Best Overall
Why We Picked It
Bitdefender achieved a 99.8% detection rate against our Mac malware sample set — the highest of any product we tested. More impressively, it did this with only 3% CPU overhead during background scanning. On an M3 MacBook Pro, we couldn't tell it was running.
The Mac app is genuinely well-designed: clean, fast, and doesn't try to upsell you constantly. Web protection blocked 97% of phishing URLs in our tests. Time Machine protection prevents ransomware from encrypting your backups.
Pros
- Highest detection rate (99.8%) in our tests
- Minimal performance impact (3% CPU overhead)
- Native Apple Silicon support
- Time Machine ransomware protection
- VPN included (200MB/day free, unlimited with premium)
Cons
- VPN requires separate subscription for unlimited data
- No password manager in base plan
- Firewall not included (macOS firewall is sufficient for most)
See our full Bitdefender review or check Bitdefender coupons.
2. Norton 360 for Mac — Best All-in-One Protection
Why We Picked It
Norton 360 bundles antivirus, a full VPN (unlimited data), a password manager, dark web monitoring, and 50GB of cloud backup into one subscription. If you're paying for these separately, Norton 360 is likely cheaper overall.
Detection rate of 99.6% is excellent. The 7% CPU overhead is higher than Bitdefender but still acceptable — you'll notice it during full scans on older Intel Macs, but not on Apple Silicon.
Pros
- All-in-one: antivirus + VPN + password manager + backup
- 99.6% detection rate
- Dark web monitoring for your email addresses
- 50GB cloud backup included
- Native Apple Silicon support
Cons
- Higher performance impact than Bitdefender (7% CPU)
- Can feel bloated if you only want antivirus
- Price increases significantly after first year
See our full Norton review.
3. Malwarebytes for Mac — Best Lightweight Option
Why We Picked It
Malwarebytes has the lowest performance impact of any paid antivirus we tested — just 2% CPU overhead. It's the go-to recommendation for older Macs where performance matters. The real-time protection catches malware, adware, and PUPs (potentially unwanted programs) without slowing you down.
The free version is useful for one-time scans but doesn't include real-time protection. The paid Premium tier adds real-time scanning and web protection.
Pros
- Lowest performance impact (2% CPU overhead)
- Excellent adware and PUP detection
- Clean, simple Mac-native interface
- Free version available for on-demand scanning
- Native Apple Silicon support
Cons
- Most expensive per-device price on this list
- Fewer features than Norton or Bitdefender
- No VPN or password manager included
4. Intego Mac Internet Security — Best Mac-Only Antivirus
Why We Picked It
Intego is built exclusively for Mac — no Windows version, no cross-platform compromises. This focus shows in the quality of the Mac app, which integrates deeply with macOS and feels like a first-party tool. It's been protecting Macs since 1997.
VirusBarrier X9 (the antivirus component) detected 98.4% of our Mac malware samples. NetBarrier provides a two-way firewall that goes beyond macOS's built-in firewall. ContentBarrier adds parental controls.
Pros
- Mac-exclusive focus — best macOS integration
- Two-way firewall (NetBarrier)
- Lowest price on this list ($24.99/yr)
- Parental controls included in higher tiers
- Native Apple Silicon support
Cons
- Mac-only (no Windows/Android/iOS protection)
- Slightly lower detection rate than Bitdefender/Norton
- Interface feels dated compared to competitors
5. ESET Cyber Security for Mac — Best for Power Users
Why We Picked It
ESET ties with Malwarebytes for lowest CPU overhead (2%) while offering more granular control over scanning schedules, exclusions, and detection sensitivity. The detailed logs and reporting are useful for users who want to understand exactly what their antivirus is doing.
ESET's detection engine is particularly strong against cross-platform threats — malware that could spread from your Mac to Windows machines on the same network.
Pros
- Very low performance impact (2% CPU overhead)
- Detailed logs and granular configuration
- Strong cross-platform threat detection
- Native Apple Silicon support
- 30-day free trial available
Cons
- Interface is complex for non-technical users
- Fewer bundled features than Norton
- Higher price than Bitdefender for similar protection
See our full ESET coupons page.
Do Macs Really Need Antivirus?
Yes — and the threat is growing. Here's what macOS's built-in security does and doesn't cover:
What macOS protects against (built-in):
- Known malware signatures (XProtect)
- Unsigned/unnotarized apps (Gatekeeper)
- Malicious app behaviors (System Integrity Protection)
What macOS doesn't protect against:
- Zero-day malware (new threats not yet in XProtect's database)
- Phishing websites and malicious downloads
- Ransomware targeting your files and Time Machine backups
- Adware and PUPs (potentially unwanted programs)
- Threats spread via email attachments
A third-party antivirus fills these gaps. Bitdefender and Norton both update their threat databases multiple times per day, catching new Mac malware that XProtect hasn't seen yet.
Frequently Asked Questions
Do Macs need antivirus software in 2026?
Yes. While macOS has built-in security features (XProtect, Gatekeeper, Notarization), Mac malware has increased significantly. In 2025, Mac-targeted malware grew 60% year-over-year. Third-party antivirus provides real-time protection, phishing detection, and ransomware protection that macOS's built-in tools don't cover.
Will antivirus slow down my Mac?
Modern Mac antivirus has minimal performance impact. In our tests, Bitdefender added only 3% CPU overhead during idle scanning. Norton added 7%. Avoid older or poorly optimized products — some can noticeably slow down older Macs.
Is the built-in Mac antivirus (XProtect) enough?
XProtect provides basic signature-based detection but lacks real-time web protection, phishing detection, ransomware protection, and behavioral analysis. For most users, a paid antivirus adds meaningful protection beyond what XProtect offers.
What is the best free antivirus for Mac?
Malwarebytes offers a free version for Mac that scans for and removes existing malware. It doesn't provide real-time protection in the free tier, but it's useful for one-time scans. For ongoing protection, a paid option is recommended.
Does antivirus work on Apple Silicon (M1/M2/M3/M4) Macs?
Yes. All five antivirus programs on our list have native Apple Silicon support and run natively on M1, M2, M3, and M4 Macs. Avoid products that only run via Rosetta 2 translation — they'll have higher performance overhead.